The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 04, 2014

Filed:

Sep. 28, 2010
Applicants:

Tatsuya Ito, Utsunomiya, JP;

Naoki Iwasa, Tochigi-ken, JP;

Hiroshi Ogawa, Tochigi-ken, JP;

Keisuke Takahashi, Tochigi-ken, JP;

Yuichi Tomizawa, Sakura, JP;

Yasutaka Matsuo, Tochigi-ken, JP;

Masahiro Izumida, Utsunomiya, JP;

Inventors:

Tatsuya Ito, Utsunomiya, JP;

Naoki Iwasa, Tochigi-ken, JP;

Hiroshi Ogawa, Tochigi-ken, JP;

Keisuke Takahashi, Tochigi-ken, JP;

Yuichi Tomizawa, Sakura, JP;

Yasutaka Matsuo, Tochigi-ken, JP;

Masahiro Izumida, Utsunomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F 21/02 (2006.01); B24B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A gear grinding tool, which includes a helical tooth with grinding faces on surfaces thereof, grinds tooth faces of a gear as a workpiece with the grinding faces. The grinding face includes a rough grinding face for performing a rough grinding process. The grinding face includes a rough grinding face for performing a rough grinding process, and the rough grinding face includes a forming line for performing a finishing process.


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